Home / 18,750.94-28,122.76-5,607.07

Finding the Fourth Proportional to 18,750.94, 28,122.76 and 5,607.07

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Solution

The fourth proportional to 18,750.94, 28,122.76 and 5,607.07 is: 8,409.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,750.94 : 28,122.76 = 5,607.07 : x
  2. Step 2: Convert to fraction form
    18,750.94/28,122.76 = 5,607.07/x
  3. Step 3: Cross multiply
    18,750.94x = 28,122.76 × 5,607.07
  4. Step 4: Simplify right side
    18,750.94x = 157,686,199.59
  5. Step 5: Solve for x
    x = 157,686,199.59/18,750.94
  6. Step 6: Final answer
    x = 8,409.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.